The Dow Theory
The Dow theory is a theory that says the market is in an upward trend if one of its averages (industrial or transportation) advances above a previous important high and is accompanied or followed by a similar advance in the other average. For example, if the Dow Jones Industrial Average (DJIA) climbs to an intermediate high, the Dow Jones Transportation Average (DJTA) is expected to follow suit within a reasonable period of time. The Dow theory is an approach to trading developed by Charles H. Dow who, with Edward Jones and Charles Bergstresser, founded Dow Jones & Company, Inc. and developed the DJIA. Dow fleshed out the theory in a series of editorials in the Wall Street Journal , which he co-founded. Charles Dow died in 1902, and due to his death, he never published his complete theory on the markets, but several followers and associates have published works that have expanded on the editorials. Dow believed that the stock market as a whole was a reliable measure o...